html {
  font:normal 14px '微软雅黑,Microsoft Yahei';
  color: #181818;
  font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}


body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td {
  margin: 0;
  padding: 0;
  border: 0;
}

ul li {
  list-style: none;
}

a {
  outline: 0;
  text-decoration: none;
  color:#181818;
}

.minwidth {
  width: 1200px;
  margin: 0 auto;
}

.clear::after{
  content:'';
  display:block;
  clear:both;
}

.lt {
  float: left;
}
.rt {
  float: right;
}
